Incorrect display of minor ticks in Log Scale plot with large font size #8419

Bug summary

• If I use a larger font size than the default one, a large range of data in Log scale plot results in incorrect display of minor ticks.

Code for reproduction

import matplotlib.pyplot as plt
import matplotlib as mpl

mpl.rcParams['font.size'] = 20

plt.close()

plt.plot([0,1], [1e-7, 1e-0])
plt.yscale('log')

plt.show()

Actual outcome

Expected outcome

• I would expect the minor ticks to be not displayed at all, or displayed correctly like one with default font size.

Matplotlib version

• Matplotlib version, Python version and Platform (Windows, OSX, Linux ...)

Matplotlib 2.0.0, Python 3.5.3, OSX

• How did you install Matplotlib and Python (pip, anaconda, from source ...)

via Macports